Hitachi HTS541040G9AT00 Specifications - Page 80
Device Register, Error Register, Features Register - update
UPC - 000059826569
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10.6 Device Register Table 41: Device Head/Register 7 6 5 4 3 2 1 0 1 L 1 DRV HS3 HS2 HS1 HS0 This register contains the device and head numbers. Bit Definitions L Binary encoded address mode select. When L = 0, addressing is by CHS mode. When L = 1, addressing is by LBA mode. DRV Device. When DRV = 0, device 0 (Master) is selected. When DRV = 1, device 1 (Slave) is selected. HS3, HS2, These contain bits 24-27 of the LBA. At command completion these bits are updated to reflect HS1, HS0 the current LBA bits 24-27. 10.7 Error Register Table 42: Error Register 7 6 5 4 3 2 1 0 CRC UNC 0 IDNF 0 ABRT TK0NF AMNF This register contains the status from the last command executed by the device or a diagnostic code. At the completion of any command except Execute Device Diagnostic, the contents of this register are always valid even if ERR = 0 is in the Status Register. Following a power on, a reset, or completion of an Execute Device Diagnostic command, this register contains a diagnostic code. See Table 46: "Diagnostic codes," on page 70 for the definitions. Bit Definitions ICRCE (CRC) UNC IDNF (IDN) ABRT (ABT) TK0NF (T0N) Interface CRC Error. When CRC = 1, it indicates that a CRC error has occurred on the data bus during a Ultra DMA transfer. Uncorrectable Data Error. When UNC = 1, it indicates that an uncorrectable data error has been encountered. ID Not Found. When IDN = 1, it indicates that the requested sector's ID field could not be found. Aborted Command. When ABT = 1, it indicates that the requested command has been aborted due to a device status error or an invalid parameter in an output register. Track 0 Not Found. When T0N = 1, it indicates that track 0 was not found during a recallibrate command. 10.8 Features Register This register is command specific. This register is used with the Set Features command, the S.M.A.R.T. Function Set command, and the Format Unit command. Travelstar 5K100 Hard Disk Drive Specification 66